Endoscope device and endoscope system

1. An endoscope system, comprising: a main body part comprising: a system controller; a main body part connector; and a switching circuit comprising a first input port, a second input port and an output port; a first insertion part having a first tubular shape, the first insertion part comprising: a first image sensor disposed at a distal side of the first tubular shape; a first scope detector configured to: detect connection of the first insertion part to the main body part; and generate a first scope detection signal in response to detecting the connection of the first insertion part to the main body part; a first video signal transmission device configured to: convert a video output signal from the first image sensor into an optical signal at the distal side of the first tubular shape; and optically transmit the optical signal to a proximal side of the first tubular shape; and a first insertion part connector disposed at the proximal side of the first tubular shape, wherein the first insertion part connector is configured to be selectively attachable to the main body part connector, and to output the optical signal optically transmitted to the proximal side of the first tubular shape to the main body part via the main body part connector that is selectively attached to the first insertion part connector; a second insertion part having a second tubular shape, the second insertion part comprising: a second image sensor disposed at a distal side of the second tubular shape; a second scope detector configured to: detect connection of the second insertion part to the main body part; and generate a second scope detection signal in response to detecting the connection of the second insertion part to the main body part; a second video signal transmission device configured to metallically transmit a video output signal from the second image sensor from the distal side of the second tubular shape to a proximal side of the second tubular shape; and a second insertion part connector disposed at the proximal side of the second tubular shape, wherein the second insertion part connector is configured to be selectively attachable to the main body part connector, and to output the video output signal metallically transmitted to the proximal side of the second tubular shape to the main body part via the main body part connector that is selectively attached to the second insertion part connector, wherein the system controller is configured to: generate a first control signal in response to the first scope detection signal; and generate a second control signal in response to the second scope detection signal, and wherein the switching circuit is configured to selectively switch between: receiving a signal corresponding to the optical signal received by the main body part connector through the first input port and outputting the signal corresponding to the optical signal to the output port, in response to the first control signal generated by the system controller; and receiving the video output signal received by the main body part connector through the second input port and outputting the video output signal to the output port, in response to the second control signal generated by the system controller.

2. The endoscope system according to claim 1 , wherein the first insertion part further comprises a first non-video electrical signal transmission device configured to metallically transmit a first non-video electrical signal, received from the main body part, from the proximal side of the first tubular shape to the first image sensor, wherein the first non-video electrical signal includes a control signal of the first image sensor, wherein the second insertion part further comprises a second non-video electrical signal transmission device configured to metallically transmit a second non-video electrical signal, received from the main body part, from the proximal side of the second tubular shape to the second image sensor, wherein the second non-video electrical signal includes a control signal of the second image sensor, wherein the main body part connector is configured to transmit the first non-video electrical signal from the main body part to the first insertion part, when the first insertion part connector is electrically coupled with the main body part connector, and wherein the main body part connector is configured to transmit the second non-video electrical signal from the main body part to the second insertion part, when the second insertion part connector is electrically coupled with the main body part connector.

3. The endoscope system according to claim 2 , wherein the first non-video electrical signal transmission device is configured to transmit the first scope detection signal, and wherein the second non-video electrical signal transmission device is configured to transmit the second scope detection signal.

4. The endoscope system according to claim 1 , wherein the first scope detection signal includes one or more of information corresponding to a length of the first insertion part, information corresponding to a formation of the first insertion part, and information corresponding to a transmission manner of the first video signal transmission device, and wherein the second scope detection signal includes one or more of information corresponding to a length of the second insertion part, information corresponding to a formation of the second insertion part, and information corresponding to a transmission manner of the second video signal transmission device.

5. An endoscope system comprising: a main body part comprising: a system controller; a main body part connector; and a switching circuit comprising a first input port, a second input port and an output port, wherein the main body part is configured to be selectively connected to a first insertion part having a first tubular shape, the first insertion part comprising: a first image sensor disposed at a distal side of the first tubular shape; a first scope detector configured to: detect connection of the first insertion part to the main body part; and generate a first scope detection signal in response to detecting the connection of the first insertion part to the main body part; a first video signal transmission device configured to: convert a video output signal from the first image sensor into an optical signal at the distal side of the first tubular shape; and optically transmit the optical signal to a proximal side of the first tubular shape; and a first insertion part connector disposed at the proximal side of the first tubular shape, wherein the first insertion part connector is configured to be selectively attachable to the main body part connector, and to output the optical signal optically transmitted to the proximal side of the first tubular shape to the main body part via the main body part connector that is selectively attached to the first insertion part connector, wherein the main body part is configured to be selectively connected to a second insertion part having a second tubular shape, the second insertion part comprising: a second image sensor disposed at a distal side of the second tubular shape; a second scope detector configured to: detect connection of the second insertion part to the main body part; and generate a second scope detection signal in response to detecting the connection of the second insertion part to the main body part; a second video signal transmission device configured to metallically transmit a video output signal from the second image sensor from the distal side of the second tubular shape to a proximal side of the second tubular shape; and a second insertion part connector disposed at the proximal side of the second tubular shape, wherein the second insertion part connector is configured to be selectively attachable to the main body part connector, and to output the video output signal metallically transmitted to the proximal side of the second tubular shape to the main body part via the main body part connector that is selectively attached to the second insertion part connector, wherein the system controller is configured to: generate a first control signal in response to the first scope detection signal; and generate a second control signal in response to the second scope detection signal, and wherein the switching circuit is configured to selectively switch between: receiving a signal corresponding to the optical signal received by the main body part connector through the first input port and outputting the signal corresponding to the optical signal to the output port, in response to the first control signal generated by the system controller; and receiving the video output signal received by the main body part connector through the second input port and outputting the video output signal to the output port, in response to the second control signal generated by the system controller.